A contour integral method for stress intensity factors of Mixed-Mode crack
  
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DOI:10.7511/jslx19961013
KeyWord:stress intensity factor,finite element method/conservation integration,
Yang Xiaoxiang  Fan Jiaqi
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Abstract:
      On the basis of Muskhelishvili's complex function theory, an auxiliary field of mixedmode crack was accomplished, and then using Betti's reciprocal work theorem, a path independent contour integral method for stress intensity factors of mixed-mode crack was obtained. When the stress and displacement fields in a specimen are calculated by finite element method, the stress intensity factors K and K of mixed-mode crack can be obtained immediately by a contour integral.